Heated Seat Switch - Description

DESCRIPTION






NOTE: Typical accessory switch bank and bezel shown.

The heated seat switches (1 and 2) are part of the accessory switch bank located near the bottom center of the instrument panel.

When either of the heated seat switches are pressed, a switch status message is sent to the Cab Compartment Node (CCN) or instrument cluster via the Local Interface Network (LIN) data bus. The CCN then sends a message via the LIN data bus to the heated seat module, signaling the module to energize the heating element for the selected seat. Amber Light Emitting Diodes (LEDs) (3 and 4) in each heated seat switch indicate the level of heat in use: Two LEDs are illuminated for high, one for low, and none for off. The heated seat module sends the LED illumination message to the CNN via the LIN data bus. The CNN then sends the LED illumination message to the accessory switch bank so that the appropriate LEDs are illuminated for any given heating level. Pressing the switch once will select high-level heating. Pressing the switch a second time will select low-level heating. Pressing the switch a third time will shut the heating elements off.

The heated seat switches and LEDs cannot be adjusted or repaired and the entire accessory switch bank must be replaced if damaged or inoperative.